1 /* 2 * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 25 /* 26 * @test 27 * @summary Test JVM's awareness of cpu sets (cpus and mems) 28 * @library /testlibrary /testlibrary/whitebox 29 * @build AttemptOOM CPUSetsReader sun.hotspot.WhiteBox PrintContainerInfo 30 * @run driver ClassFileInstaller -jar whitebox.jar sun.hotspot.WhiteBox sun.hotspot.WhiteBox$WhiteBoxPermission 31 * @run driver TestCPUSets 32 */ 33 34 import java.util.List; 35 import com.oracle.java.testlibrary.Common; 36 import com.oracle.java.testlibrary.DockerRunOptions; 37 import com.oracle.java.testlibrary.DockerTestUtils; 38 import com.oracle.java.testlibrary.Asserts; 39 import com.oracle.java.testlibrary.Platform; 40 import com.oracle.java.testlibrary.Utils; 41 import com.oracle.java.testlibrary.OutputAnalyzer; 42 43 44 public class TestCPUSets { 45 private static final String imageName = Common.imageName("cpusets"); 46 47 public static void main(String[] args) throws Exception { 48 if (!DockerTestUtils.canTestDocker()) { 49 return; 50 } 51 52 Common.prepareWhiteBox(); 53 DockerTestUtils.buildJdkDockerImage(imageName, "Dockerfile-BasicTest", "jdk-docker"); 54 55 try { 56 // Sanity test the cpu sets reader and parser 57 CPUSetsReader.test(); 58 testTheSet("Cpus_allowed_list"); 59 testTheSet("Mems_allowed_list"); 60 } finally { 61 DockerTestUtils.removeDockerImage(imageName); 62 } 63 } 64 65 66 private static void testTheSet(String setType) throws Exception { 67 String cpuSetStr = CPUSetsReader.readFromProcStatus(setType); 68 69 if (cpuSetStr == null) { 70 System.out.printf("The %s test is skipped %n", setType); 71 } else { 72 List<Integer> cpuSet = CPUSetsReader.parseCpuSet(cpuSetStr); 73 74 // Test subset of one, full subset, and half of the subset 75 testCpuSet(CPUSetsReader.listToString(cpuSet, 1)); 76 if (cpuSet.size() > 1) { 77 testCpuSet(CPUSetsReader.listToString(cpuSet)); 78 } 79 if (cpuSet.size() > 2) { 80 testCpuSet(CPUSetsReader.listToString(cpuSet, cpuSet.size()/2 )); 81 } 82 } 83 } 84 85 86 private static DockerRunOptions commonOpts() { 87 DockerRunOptions opts = new DockerRunOptions(imageName, "/jdk/bin/java", 88 "PrintContainerInfo"); 89 opts.addDockerOpts("--volume", Utils.TEST_CLASSES + ":/test-classes/"); 90 opts.addJavaOpts("-XX:+UnlockDiagnosticVMOptions", "-XX:+PrintContainerInfo", "-cp", "/test-classes/"); 91 Common.addWhiteBoxOpts(opts); 92 return opts; 93 } 94 95 96 private static void checkResult(List<String> lines, String lineMarker, String value) { 97 boolean lineMarkerFound = false; 98 99 for (String line : lines) { 100 if (line.contains(lineMarker)) { 101 lineMarkerFound = true; 102 String[] parts = line.split(":"); 103 System.out.println("DEBUG: line = " + line); 104 System.out.println("DEBUG: parts.length = " + parts.length); 105 106 Asserts.assertEquals(parts.length, 2); 107 String set = parts[1].replaceAll("\\s",""); 108 String actual = CPUSetsReader.listToString(CPUSetsReader.parseCpuSet(set)); 109 Asserts.assertEquals(actual, value); 110 break; 111 } 112 } 113 Asserts.assertTrue(lineMarkerFound); 114 } 115 116 117 private static void testCpuSet(String value) throws Exception { 118 Common.logNewTestCase("cpusets.cpus, value = " + value); 119 120 DockerRunOptions opts = commonOpts(); 121 opts.addDockerOpts("--cpuset-cpus=" + value); 122 123 List<String> lines = Common.run(opts).asLines(); 124 checkResult(lines, "cpuset.cpus is:", value); 125 } 126 127 private static void testMemSet(String value) throws Exception { 128 Common.logNewTestCase("cpusets.mems, value = " + value); 129 130 DockerRunOptions opts = commonOpts(); 131 opts.addDockerOpts("--cpuset-mems=" + value); 132 133 List<String> lines = Common.run(opts).asLines(); 134 checkResult(lines, "cpuset.mems is:", value); 135 } 136 137 }